ExampleStructureTensor.cpp

Example for the structure tensor

Author

MIP

/* 
This file is part of the BIAS library (Basic ImageAlgorithmS).

Copyright (C) 2003-2009    (see file CONTACT for details)
  Multimediale Systeme der Informationsverarbeitung
  Institut fuer Informatik
  Christian-Albrechts-Universitaet Kiel


BIAS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

BIAS is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with BIAS; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

/** 
    @example ExampleStructureTensor.cpp
    @brief Example for the structure tensor
  @relates StructureTensor
    @ingroup g_examples 
    @author MIP
*/

#include <Filter/StructureTensor.hh>
#include <Base/Image/ImageIO.hh>
#include <Base/Image/ImageConvert.hh>

using namespace BIAS;
using namespace std;

#define type 0

#if type == 0

#ifdef BUILD_IMAGE_INT
#define StorageType unsigned char
#define OutputImageType int
#else
#define StorageType unsigned char
#define OutputImageType float
#endif

#elif type == 1

#define StorageType float
#define OutputImageType float

#endif


int main(int argc, char *argv[])
{
  StructureTensor<OutputImageType, OutputImageType> st;

  Image<unsigned char> ucim;
  Image<OutputImageType> im, sgxx, sgxy, sgyy;

  int argind = 1;
  if (argc-argind<1 || argind<1){
    cerr << argv[0] << " [parameter] <im1> <im2> [ <im3> ... ] \n";
    return -2;
  } 

  // set debuglevel
  //st.AddDebugLevel(D_ST_WRITE_DEBUG_IM);

  for (int i=argind; i<argc; i++){
    if (ImageIO::Load(argv[i], ucim)!=0){
      BIASERR("error loading image "<<argv[i]);
      return -1;
    } else {
      cerr << "read "<<argv[i]<<endl;
    }

    if (ImageConvert::ConvertST(ucim, im, im.GetStorageType())!=0){
      BIASERR("error converting image "<<argv[i]);
    }
    
    st.CalcStructureTensor(im, sgxx, sgxy, sgyy);
    
    ostringstream name;
    name << "sgxx-"<<setw(4)<<setfill('0')<<i-argind<<".ppm";
    ImageIO::Save(name.str(), sgxx, ImageIO::FF_ppm);
    name.str("");
    name << "sgxy-"<<setw(4)<<setfill('0')<<i-argind<<".ppm";
    ImageIO::Save(name.str(), sgxy, ImageIO::FF_ppm);
    name.str("");
    name << "sgyy-"<<setw(4)<<setfill('0')<<i-argind<<".ppm";
    ImageIO::Save(name.str(), sgyy, ImageIO::FF_ppm);
    
  }

  return 0;
}